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E6580757
B-10
2
■ Sink logic (negative common)/source logic (positive common)
logic switching of input output terminals
Current flowing out turns control input terminals on. These are called sink logic terminals (The end of Type
- form : AN / WN). The general used method in Europe is source logic in which current flowing into the in-
put terminal turns it on(The end of Type - form : WP).
Sink logic
Source logic
Input
Inverter
Programmable
controller
Common
Output
Common
Output
Input
Inverter
Programmable
controller
Common
Input
Output
Input
Common
Output